The father of two denies stabbing the 36 year old to death at Killakee Mountain in Rathfarnham in August 2012 for his own sexual gratification.
The jury has heard Graham Dwyer was arrested at home just after 7am on October 17th 2013.
A two day search of the architect's house at Kerrymount Close, Foxrock was carried out.
Items of interest were seized, bagged and labelled while audi and land rover cars were taken away for further inspection.
Gardaí also conducted a search of the offices of A&D Wejchert on Lower Baggot Street where Mr Dwyer worked.
The court heard computers, laptops, attendance sheets and mobile phone records were seized.
He denies murdering Elaine O'Hara. The prosecution alleges he was involved in a BDSM relationship with the childcare worker that involved stabbing.
